![Gulf of California / Pachycereeae / Madrean Region / Sonoran Desert / Saguaro / Gila monster / Geography of North America / Physical geography / Biogeography Gulf of California / Pachycereeae / Madrean Region / Sonoran Desert / Saguaro / Gila monster / Geography of North America / Physical geography / Biogeography](https://www.pdfsearch.io/img/1b5548f382048bf6deb73d5e44762813.jpg) Date: 2009-01-30 13:26:25Gulf of California Pachycereeae Madrean Region Sonoran Desert Saguaro Gila monster Geography of North America Physical geography Biogeography | | Free Public Lecture Sonoran Desert Fragile Land of Extremes A video presentation and discussion Research Ecologists Cecil Schwalbe and Todd Esque will introduce the 2003 USGS video Sonoran Desert:Add to Reading ListSource URL: online.wr.usgs.govDownload Document from Source Website File Size: 148,17 KBShare Document on Facebook
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